Mass if the amount of matter in something, while weight is gravity acting on mass.
Explanation:
Mass is the simple measure of the amount of matter in an object, while weight is the force exerted by the object on the area beneath it as a result of gravity or another attractive force.
There is a basic difference, because mass is the actual amount of material contained in a body and is measured in kg, gm, etc. Whereas weight is the force exerted by the gravity on that object mg. Note that mass is independent of everything but weight is different on the earth, moon, etc.
